Refactoring

Refactoring is the process of incrementally improving the design of software.

Far more than you ever wanted to know about refactoring at http://www.refactoring.com/.

External links

Some of the work being done in functional languages, and Haskell in particular:

• Refactoring Functional Programs aka the refactor-fp project
• Generic refactoring in Haskell
• Datatype refactoring in Haskell
• http://www.refactoring.com/ - the refactoring meta-site by Martin Fowler, linking to lots of other useful stuff.
• .NET Refactoring tutorial
• retrie: A powerful, easy-to-use codemodding tool for Haskell.

On this wiki

• Lifting pattern
• Lambda lifting
• Data structure free transformation
• Continuation passing style transformation
• Monadic style transformation